On Sunday 06 February 2011 18:31:27 Алексей Прокопчук wrote: > I was able to repeat the protocol of data exchange fingerprint reader in a > standalone application. Of course, I could not entirely parse the > protocol, and I just copied all the actions performed by the driver under > Windows. At the moment I can initialize the device and wait for when the > fingerprint will be enrolled and then get the data from the reader. > The scanner gives the data of the fingerprint by eight blocks of 61440 > bytes in each. Manufacturer's web site indicated that image resolution is > 192 x 8 pixels @ 508 dpi, 16 gray levels / sensor pixel (4-bit ADC). > Unfortunately, I'm totally not familiar with the image processing > algorithms. I tried to write the obtained data as the PGM image, but this > format only supports 8 bits per pixel, hence 61440 bytes - it is exactly > an image 192 x 320. > If I give a link to a sample of the data, obtained from reader, can you > help me deal with what to do with this data? I would like to know at least > what they look like and how they can be passed to the processing > libfprint, if it possible at all. > > Thanks in advance, with best regards, Alexey Prokopchuk.
Hi, take a look at aes2501 driver, it receives similar parts from sensor, and then assembles them into one image. AFAIK assembling part was separated in common part of aes2501 and aes1610 drivers. Regards Vasily _______________________________________________ fprint mailing list fprint@reactivated.net http://lists.reactivated.net/mailman/listinfo/fprint
